Cap Application Device With Sensor-Guided Chute Adjustment

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Solution Overview

Problem

Existing cap application devices in packaging machines lack precision and accuracy in applying caps onto collars, leading to potential misalignment and increased waste.

Innovation Solution

A cap application device with a movable chute member and sensor system that adjusts the release position of caps based on real-time collar position detection, using servomotors and control units to ensure accurate alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a fixed chute is used to feed caps, then the device structure is simple, but the cap application precision is poor

Engineering Contradiction:
Improvecap application precisionVSAvoiddevice structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The chute is made movable instead of fixed, allowing it to adjust its position dynamically. The chute can move in the vertical direction to align with the actual position of collars detected by sensors, thereby improving cap application precision while maintaining relatively simple device structure through controlled mobility rather than complex multi-component systems

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A sensor system detects the actual position of collars and provides feedback to the control unit, which then adjusts the chute position accordingly. This closed-loop feedback mechanism ensures high cap application precision by continuously adapting the chute position to match collar positions, resolving the contradiction between precision and structural simplicity

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If the cap release position is fixed, then the device operation is simple, but misalignment with collars occurs leading to increased waste

Engineering Contradiction:
Improvecap alignment accuracyVSAvoidoperation complexity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The cap release position is made dynamically adjustable through the movable chute mechanism. The chute can shift vertically to match varying collar positions, ensuring accurate cap alignment and release. This dynamic adjustment capability eliminates misalignment waste while the automated control keeps operation simple for the user

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sensor system continuously monitors collar positions and provides real-time feedback to the control unit, which automatically adjusts the cap release position. This feedback-driven automatic adjustment ensures high alignment accuracy without requiring complex manual operation, resolving the contradiction between precision and ease of operation

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4596482A1Cap application device and method for applying caps to sealed packages
Publication Date: 2025.08.06 TETRA LAVAL HOLDINGS & FINANCE SA
  • EP4596482A1 patent drawingFigure 1
  • EP4596482A1 patent drawingFigure 2
  • EP4596482A1 patent drawingFigure 3

AI summary

There is described a cap application device (14) for a capping apparatus (13) of a packaging machine (1) configured to produce sealed packages (2) containing a pourable product and each provided with a respective pouring collar (5), the cap application device (14) is configured to apply caps (6) onto the respective collars (5) of such packages (2) and comprises: a conveyor (15) configured to advance a succession of packages (2) along an advancement path (P) for conveying each collar (5) through an application station (A); a feeding unit (16) configured to sequentially feed the caps (6) towards the application station (A), at which the caps (6) are released from the feeding unit (16) to be applied onto respective collars (5); the feeding unit (16) is movable for automatically adjusting the position at which said caps (6) are released, and/or the position of the application station (A), with respect to the advancement path (P).